100560155 has 4 divisors (see below), whose sum is σ = 120672192. Its totient is φ = 80448120.

The previous prime is 100560149. The next prime is 100560157. The reversal of 100560155 is 551065001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100560155 - 2⁶ = 100560091 is a prime.

It is a super-2 number, since 2×100560155² = 20224689547248050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100560155.

It is not an unprimeable number, because it can be changed into a prime (100560157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10056011 + ... + 10056020.

It is an arithmetic number, because the mean of its divisors is an integer number (30168048).

Almost surely, 2^100560155 is an apocalyptic number.

100560155 is a deficient number, since it is larger than the sum of its proper divisors (20112037).

100560155 is an equidigital number, since it uses as much as digits as its factorization.

100560155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20112036.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 100560155 is about 10027.9686377651. The cubic root of 100560155 is about 465.0239398782.

The spelling of 100560155 in words is "one hundred million, five hundred sixty thousand, one hundred fifty-five".